-- 补全「文物南迁北归之路」：南迁（去程）+ 北归（回程，东归南京、北返北京）
UPDATE narrative_routes SET title = '文物南迁北归之路', summary =
  '1933—1950 年代，故宫等机构为避战火，将上万箱文物分路南迁西运，辗转上海、南京、宝鸡、汉中、成都、峨眉、重庆等地；抗战胜利后文物东归南京，新中国成立后部分文物北返故宫，行程逾万里、历时十余年而几无损失，被誉为人类文明守护史上的奇迹。'
WHERE code = 'nanqian';

DELETE FROM route_stops WHERE route_id = (SELECT id FROM narrative_routes WHERE code = 'nanqian');

INSERT INTO route_stops (route_id, seq, name, lng, lat, year_label, event) VALUES
  ((SELECT id FROM narrative_routes WHERE code='nanqian'),1,'北京·紫禁城（起运）',116.3972,39.9163,'1933','13427 箱文物分批南迁起运'),
  ((SELECT id FROM narrative_routes WHERE code='nanqian'),2,'上海',121.4737,31.2293,'1933—1936','暂存法租界库房'),
  ((SELECT id FROM narrative_routes WHERE code='nanqian'),3,'南京·朝天宫',118.7780,32.0300,'1936—1937','迁入朝天宫库房，旋因战事再迁'),
  ((SELECT id FROM narrative_routes WHERE code='nanqian'),4,'宝鸡',107.1444,34.3693,'1937—1938','北路西迁，翻越秦岭'),
  ((SELECT id FROM narrative_routes WHERE code='nanqian'),5,'汉中',107.0238,33.0678,'1938','转运途中遭遇空袭与塌方'),
  ((SELECT id FROM narrative_routes WHERE code='nanqian'),6,'成都',104.0665,30.6623,'1938','中路文物暂存'),
  ((SELECT id FROM narrative_routes WHERE code='nanqian'),7,'峨眉',103.4844,29.6010,'1939—1946','南路文物存于峨眉，安然度过战火'),
  ((SELECT id FROM narrative_routes WHERE code='nanqian'),8,'重庆',106.5516,29.5647,'1938—1946','中路文物存于巴县、乐山一带'),
  ((SELECT id FROM narrative_routes WHERE code='nanqian'),9,'南京（东归集中）',118.7780,32.0300,'1947','抗战胜利后各路文物复员东归、集中南京'),
  ((SELECT id FROM narrative_routes WHERE code='nanqian'),10,'北京·紫禁城（北归）',116.3972,39.9163,'1950s','部分文物陆续北返故宫，南迁北归画上句点');